21707293001 has 2 divisors, whose sum is σ = 21707293002. Its totient is φ = 21707293000.

The previous prime is 21707292973. The next prime is 21707293007. The reversal of 21707293001 is 10039270712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21704655625 + 2637376 = 147325^2 + 1624^2 .

It is a cyclic number.

It is not a de Polignac number, because 21707293001 - 2³⁰ = 20633551177 is a prime.

It is not a weakly prime, because it can be changed into another prime (21707293007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10853646500 + 10853646501.

It is an arithmetic number, because the mean of its divisors is an integer number (10853646501).

Almost surely, 2^21707293001 is an apocalyptic number.

It is an amenable number.

21707293001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21707293001 is an equidigital number, since it uses as much as digits as its factorization.

21707293001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The spelling of 21707293001 in words is "twenty-one billion, seven hundred seven million, two hundred ninety-three thousand, one".